Proxy the 'unsafe' attribute to the internal ::Versioned storage

Changes

@@ -51,6 +51,8 @@ Revision history for DBIx::Class
         - Fix spurious ROLLBACK statements when a TxnScopeGuard fails a commit
           of a transaction with deferred FK checks: a guard is now inactivated
           immediately before the commit is attempted (RT#107159)
+        - Fix use of ::Schema::Versioned combined with a user-supplied
+          $dbh->{HandleError} (GH#101)
         - Fix spurious warning on MSSQL cursor invalidation retries (RT#102166)
         - Fix parsing of DSNs containing driver arguments (GH#99)
         - Work around unreliable $sth->finish() on INSERT ... RETURNING within

lib/DBIx/Class/Schema/Versioned.pm

@@ -591,7 +591,12 @@ sub _on_connect
 
   weaken (my $w_storage = $self->storage );
 
-  $self->{vschema} = DBIx::Class::Version->connect(sub { $w_storage->dbh });
+  $self->{vschema} = DBIx::Class::Version->connect(
+    sub { $w_storage->dbh },
+
+    # proxy some flags from the main storage
+    { map { $_ => $w_storage->$_ } qw( unsafe ) },
+  );
   my $conn_attrs = $w_storage->_dbic_connect_attributes || {};
 
   my $vtable = $self->{vschema}->resultset('Table');

t/94versioning.t

@@ -281,6 +281,35 @@ is
   ), 3, "Expected number of connections at end of script"
 ;
 
+# Test custom HandleError setting on an in-memory instance
+{
+  my $custom_handler = sub { die $_[0] };
+
+  # try to setup a custom error handle without unsafe set -- should
+  # fail, same behavior as regular Schema
+  throws_ok {
+    DBICVersion::Schema->connect( 'dbi:SQLite::memory:', undef, undef, {
+      HandleError => $custom_handler,
+      ignore_version => 1,
+    })->deploy;
+  }
+    qr/Refusing clobbering of \{HandleError\} installed on externally supplied DBI handle/,
+    'HandleError with unsafe not set causes an exception'
+  ;
+
+  # now try it with unsafe set -- should work (see RT #113741)
+  my $s = DBICVersion::Schema->connect( 'dbi:SQLite::memory:', undef, undef, {
+    unsafe => 1,
+    HandleError => $custom_handler,
+    ignore_version => 1,
+  });
+
+  $s->deploy;
+
+  is $s->storage->dbh->{HandleError}, $custom_handler, 'Handler properly set on main schema';
+  is $s->{vschema}->storage->dbh->{HandleError}, $custom_handler, 'Handler properly set on version subschema';
+}
+
 END {
   rm_rf $ddl_dir unless $ENV{DBICTEST_KEEP_VERSIONING_DDL};
 }